Abstract:
:Previous brain infarctions seen on CT are common in the absence of history of stroke. Eleven percent of patients (135/1,203) without stroke history had ischemic lesions on their first CT, unrelated to the presenting stroke. Stroke Data Bank files were reviewed to determine whether the occurrence, location, and CT characteristics of those lesions are associated with their undetected status. Two distinct patterns were seen: (1) Small lesions of 1 cm or less were left hemisphere predominant and involved the deep structures of the brain; the majority of these were clinically silent. (2) Lesions greater than 1 cm occurred more frequently in the right hemisphere and were mostly superficial; these infarcts produced signs unrecognized by the patient or family. Risk factors for silent stroke were similar to those for stroke in general. Frequencies of in-hospital complications and 30-day fatality rates from the presenting stroke were not influenced by the existence of a prior silent stroke.
journal_name
Neurologyjournal_title
Neurologyauthors
Chodosh EH,Foulkes MA,Kase CS,Wolf PA,Mohr JP,Hier DB,Price TR,Furtado JG Jrdoi
10.1212/wnl.38.11.1674subject
Has Abstractpub_date
1988-11-01 00:00:00pages
1674-9issue
11eissn
0028-3878issn
1526-632Xjournal_volume
38pub_type
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